Finding the Fourth Proportional to 146,355.76, 201,980.28 and 89,759.44
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Solution
The fourth proportional to 146,355.76, 201,980.28 and 89,759.44 is: 123,873.75
Step by Step Solution
- Step 1: Write the proportion equation
146,355.76 : 201,980.28 = 89,759.44 : x - Step 2: Convert to fraction form
146,355.76/201,980.28 = 89,759.44/x - Step 3: Cross multiply
146,355.76x = 201,980.28 × 89,759.44 - Step 4: Simplify right side
146,355.76x = 18,129,636,823.84 - Step 5: Solve for x
x = 18,129,636,823.84/146,355.76 - Step 6: Final answer
x = 123,873.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.